DBH 5531 radial shaft seal — 33.33 x 57 x 6.35

DBH 5531 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 5531 and any equivalents.

The DBH 5531 is a radial shaft seal that keeps lubricant where it belongs and keeps dust and grit out of rotating assemblies. It fits a 33.33 mm shaft, a 57 mm housing bore and a 6.35 mm height, so it suits equipment where axial room is tight. The Mt designation refers to a single lip with spring, the common choice for general power transmission and industrial machinery. MR Industrial Accessories supplies this brand and helps you match the seal to your application.

Reading the code is straightforward once you know what to look for. The three figures describe the sealing point: 33.33 mm at the shaft, 57 mm at the bore, 6.35 mm across the height. The Mt callout tells you the lip is a single element with a spring, built for rotating shafts that need oil or grease held in and airborne dirt kept out. Those numbers let a maintenance tech swap a spent seal in a tight cavity without guesswork.

You will find seals of this type in gearboxes, pumps, electric motors, line shafts and process machinery. They do two jobs at once: they hold the lubricant inside the assembly and they stop particles from reaching bearings and gears, where grit would speed up wear. Because they are consumable parts, they belong on the preventive maintenance checklist. Catching a weeping seal early is what keeps a small leak from turning into unplanned downtime.

Selection comes down to matching all three dimensions to the shaft and bore you have. The shaft surface should be smooth, without grooves or heavy wear, and the bore should be clean and free of burrs before anything goes in. Lubricate the lip, then seat the seal with a proper driver rather than a hammer. If the shaft is already grooved, look at other options before pressing in a new seal.

Need this seal or a cross to another brand? Send the dimensions or the original part number and we will search the DBH line and the other brands we carry, keeping the shaft, bore and height requirements intact. Details such as lubricant type and rotation speed help us narrow the proposal.

To get a quote on the DBH 5531, message us on WhatsApp or by email with part number 5531 or with your equipment dimensions. MR Industrial Accessories supplies power transmission components, seals and bearings to customers across the United States and in several Latin American countries.